TY - JOUR AU - B. M. Shain TI - Representation of ordered projection semigroups JO - Sbornik. Mathematics PY - 1971 SP - 552 EP - 568 VL - 13 IS - 4 UR - http://geodesic.mathdoc.fr/item/SM_1971_13_4_a3/ LA - en ID - SM_1971_13_4_a3 ER -